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155630480153 = 1011731538261
BaseRepresentation
bin1001000011110001001…
…1001010101100011001
3112212201011012112121112
42100330103022230121
510022212400331103
6155255021150105
714146445153201
oct2207423125431
9485634175545
10155630480153
1160003392235
12261b43bb335
13118a2c19315
147765491401
1540ad074cd8
hex243c4cab19

155630480153 has 4 divisors (see below), whose sum is σ = 155632119588. Its totient is φ = 155628840720.

The previous prime is 155630480111. The next prime is 155630480197. The reversal of 155630480153 is 351084036551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 150693028864 + 4937451289 = 388192^2 + 70267^2 .

It is a cyclic number.

It is not a de Polignac number, because 155630480153 - 232 = 151335512857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155630480153.

It is not an unprimeable number, because it can be changed into a prime (155630480653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667958 + ... + 870303.

It is an arithmetic number, because the mean of its divisors is an integer number (38908029897).

Almost surely, 2155630480153 is an apocalyptic number.

It is an amenable number.

155630480153 is a deficient number, since it is larger than the sum of its proper divisors (1639435).

155630480153 is a wasteful number, since it uses less digits than its factorization.

155630480153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639434.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 155630480153 in words is "one hundred fifty-five billion, six hundred thirty million, four hundred eighty thousand, one hundred fifty-three".

Divisors: 1 101173 1538261 155630480153